Precise comfort and discreet aesthetics in a Montreal home
In a family home in Saint-Léonard (Montreal) , our clients wanted efficient cooling in the summer and economical heating support in the fall and spring, without adding to the decor. We recommended anElios wall-mounted heat pump , known for its understated design, quiet operation , and temperature stability in the living areas. The interior head is integrated above the mirror in the entrance-living room, as close as possible to the ceiling , for uniform sweeping and optimized performance.
Project objectives and site constraints
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Improve comfort in the open area (entrance–living room–dining room), exposed to solar gain in the afternoon.
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Reduce the bill for existing electrical heaters during the off-season.
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Preserve aesthetics : no excessive projections, no visible cables , and a shutter that diffuses without creating a direct air current in the circulation area.
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Respect the clearances near the ceiling molding and wall elements (mirror, photo frames).
Expected result: a stable temperature , simplified maintenance and a sober visual rendering - three criteria on which we systematically stake our reputation.
HVAC System Design: Cleanliness of the Path and Reliability
Inner head positioning
The Elios head is centered at the top, with sufficient upper clearance for suction. This position allows:
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a cross-flow of air that sweeps across the open area without directly hitting the occupants;
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limited stratification thanks to the return of air from below and continuous recirculation;
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easy access to the hood for cleaning the filters.
Refrigeration and feeding route
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Estimated refrigeration length : ~4 to 5 m to the external condenser, on the side facade.
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Drilling : single, correct diameter, sleeved and sealed (vapor barrier + cellular foam) to prevent air and moisture infiltration.
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Chute : white in low relief, tight fittings, aligned with the moldings to remain almost invisible in the room.
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Communication and power cabling : common routing in duct, marked and accessible for service.
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Dedicated power supply ** 208/230 V** with compliant circuit breaker; panel marking for unambiguous future intervention.
Condensate management
The facade installation allowed for gravity drainage : continuous slope, non-return and discreet outlet on the outside. This solution eliminates the risk of overflow, limits noise and simplifies maintenance . When gravity is not possible, we offer a silent mini-condensate pump ; here, it remained unnecessary thanks to the choice of the wall.
AirGreen Methodology: From Copper to Comfort
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Pre-inspection : validation of clearances, support, aesthetic constraints (mirror, frames), electrical routing.
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Preparation of connections : large radius bends, calibrated flares and brazing under nitrogen if necessary.
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Leak test : high pressure nitrogen immersion and drop control.
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Vacuum draw : ≤ 500 microns , stabilization, then isolation of the pump to check the rise.
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Commissioning : load opening, cold/hot tests , verification of blowing temperatures and intensities.
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Fine adjustments : fan speed, orientation of the shutter to avoid direct airflow on the passage, activation of night mode .
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Customer delivery : remote control demonstration, HVAC maintenance schedule, seasonal usage advice.
Results observed: silence, stability, sobriety
After switching on, the Elios blower quickly achieves a cool, even blow . Owners note:
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a very low noise level in the living room, ideal for TV evenings and children's naps;
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a significant reduction in heat peaks in the late afternoon;
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a clean aesthetic : the chute follows the line, and the head aligns with the high molding, without disturbing the decoration.
Essential technical details (excerpt)
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Type : Elios wall-mounted heat pump , indoor head with digital display.
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Vanes : automatic vertical sweep , directed adjustment to never blow directly on the occupants.
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Power supply : 208/230 V, dedicated circuit, 15 A or 20 A circuit breaker depending on the capacity chosen.
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Connections : insulated copper, coupler fittings tightened to the prescribed torque, butyl tape on the external terminations.
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Condenser : placed on anti-vibration pads with compliant clearances, orientation of air discharges away from nearby windows.
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Control : infrared remote control; Wi-Fi option available on request for remote management and energy optimization.
Sizing Tips for a Saint-Léonard House
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Surface area & envelope : a well-insulated open area often covers 9k to 12k BTU ; the presence of large openings, open kitchen and upper floor can justify 15k BTU .
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Orientation : western sunlight increases air conditioning needs at the end of the day; allow for margin rather than undersize.
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Acoustics : in semi-detached housing, the choice of supports and the distance between the rooms guide the placement of the condenser.
HVAC Maintenance: Maintaining Performance Over 12 Months
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Filters : rinse every 4 to 6 weeks during peak periods.
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Evaporator : annual professional cleaning (bio-cleaner, gentle brushing of the fins).
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Condenser : free clearances, rinsing of fins in spring, checking of fixings and silent blocks.
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Drain : check slope and insect trap ; purge at the start of summer.
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Electricity : Tightening inspection, circuit breaker and cable insulation testing.
What we deliberately avoided
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Multiple drillings : a single clean, sleeved hole to preserve the wall's watertightness.
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Visible cables : everything is covered in a low-projecting corner cable duct.
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Uncomfortable blowing : orientation of the shutter programmed and memorized to avoid drafts in the passage area.
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Vibrations : silent blocks and precise leveling of the condenser to protect interior peace and quiet and the neighborhood.
Grants and compliance in Quebec
High-performance wall-mounted heat pumps may be eligible for provincial incentives based on power , efficiency , and cold climate suitability. At AirGreen, we validate eligibility on a case-by-case basis, prepare the documents , and provide support until you receive the grants. Our team also certifies electrical compliance and adherence to municipal requirements .
AirGreen feedback: what makes the difference
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Design of the route before drilling: avoid tight bends and oil pockets.
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True deep vacuum : micron stability control rather than just instant reading.
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Aesthetic details : channel alignments, white screws , joint repairs; this is what customers notice on a daily basis.
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Service : We keep the installation history (lengths, test pressures, serial numbers) to simplify each maintenance .
Ready for a similar project in Montreal, Laval, Longueuil, North Shore, South Shore ?
Whether it's for a townhouse, a typical Saint-Léonard bungalow, a Villeray duplex or a Longueuil condo, our team sizes the heat pump , plans the route and delivers a clean, reliable and durable HVAC installation . Contact us for an on-site evaluation and a precise quote with options (Wi-Fi, filters, HVAC maintenance contract).
Keywords : heat pump , wall-mounted heat pump , wall-mounted air conditioner , HVAC installation , HVAC maintenance , Montreal , Laval , Longueuil , North Shore , South Shore , Elios , Saint-Léonard .